A spill of about 200 gallons of an oil-water mixture has prompted a temporary shutdown of an oil-separation facility at the BP-operated Prudhoe Bay oil field, the Alaska Department of Environmental

Two Alaskans pleaded guilty on Friday to illegally buying and selling hundreds of pounds of walrus tusks in what prosecutors described as Alaska's biggest wildlife-trafficking case in nearly 20 years.

The pair, along with a third defendant scheduled to plead guilty next week, were arrested in April on charges of trading cash, guns, cigarettes and at least one snowmobile for around 1,000 pounds

Alaska's Cook Inlet basin still has potential for abundant natural gas and oil discoveries even after five decades of production, according to a federal report issued on Tuesday, signaling potential revenue for the state and more interest from developers.

In the first resource assessment issued since 1995, the U.S.

Federal scientists are on the lookout for the Eskimo curlew, as they work to determine if the elusive shorebird last seen two decades ago still exists.

The U.S.

Three major glaciers in Alaska and Washington state have thinned and shrunk dramatically, clear signs of a warming climate, according to a study released Thursday by the U.S. Geological Survey.

Polar bear populations in and around Alaska are declining due to continued melting of sea ice and Russian poaching, according to reports released Thursday by the U.S. Fish and Wildlife Service.

An appeals court on Friday struck down the Bush administration's five-year plan for offshore oil and gas leasing, saying it was put into effect without proper environmental review.

The US Court of Appeals in Washington, D.C. ordered the Interior Department to rewrite the 2007-2012 plan, which was challenged by a coalition of environmental groups and Alaska Natives.

US Interior Secretary Ken Salazar heard hours of Alaskans' opinions about drilling for oil and gas off their state's shores and came away on Tuesday promising a plan to allow development while accounting for environmental risks.

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